Nail and tack making apparatus



April 25, 1950 L. LUKANICIC NAIL AND TACK MAKING APPARATUS Filed Nov. 19, 1947 2 -SheetsSheet 1 Inventor April 25, 1950 L. LUKANCIC 2,505,415

NAIL AND TACK MAKING APPARATUS Filed Nov. 19, 1947 2'Shets-Sheet 2 Inventor Lou/s Lukancic Patented Apr. 25, 1950 UNITED STATES PATENT OFFICE 2,505,415 NAIL AND TACK MAK ING APPARATUS Louis Lukancic, J oliet, Ill. 2 Application November 19, 1947, Serial No. 787,007

2 Claims.

1 The present invention relates to new and useful improvements in apparatus for making nails, tacks and similar headed fastening devices.

An important object of the invention is to provide an apparatus of this character including a 'revoluble table having mold cavities in the surface thereof for receiving molten metal together with novel means for removing the molded articles from the cavities during continuous rotation of the table.

A further object of the invention is to provide a magnet supported above the table for withdrawing the molded articles from the cavities as the same pass under the magnet.

A still further object is to provide an apparatus of this character of simple and practical construction, which is eiiicient and reliable in operation, relatively inexpensive to manufacture and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a side elevational view with parts broken away and shown in section.

Figure 2 is a top plan view.

Figure 3 is a fragmentary vertical sectional view through one side of the table taken on a line 33 of Figure 2. I

Figure 4 is a transverse sectional view through the table taken on a line 4-4 of Figure 2.

Figure 5 is a fragmentary sectional view of the table taken on a line 5-5 of Figure 2, and

Figure 6 is an enlarged view in elevation of one of the molded articles.

Referring now to the drawings in detail wherein for the purpose of illustration I have disclosed a preferred embodiment of this invention, the numeral 5 designates a supporting structure generally composed of inner and outer annular walls 6 and I having rollers 8 supported at the upper edges thereof inwardly of the walls. The supporting structure is held in position on a foundation 9 by angle iron lugs H).

An annular table I l is mounted for rotation on the rollers 8 and is frictionally driven by one of the rollers having an electric motor l2 operatively connected thereto. 1

The table is provided with a plurality of tapering mold cavities l3 extending vertically therethrough, the cavities being countersunk at their upper ends as shown at H and the lower ends of the cavities are open to provide a vent therefor.

A distributing box or receptacle I5 is supported in a stationary position above the table II by brackets 16 and molten metal is discharged into the distributor by means of a spout H extending from one side of a metal furnace l8 in which scrap metal is heated into a molten state. A A scraper I9 is supported beneath the table II adjacent the distributor [5 for removing metal projecting from the underside of the table through the vent openings of the cavities.

In the operation of the device, molten metal is discharged into the distributor l5 from the furnace l8 through the spout [1, the distributor being open at its bottom for filling the cavities [3 with the molten metal as the cavities pass under the distributor during rotation of the table II Excess metal which solidifies by cooling and which projects from the underside of the table is removed by the scraper 19.

The table [I is rotated at a slow rate of speed to permit cooling of the metal before a complete revolution of the table and a magnet designated generally at 20 is supported in position above the table by a bracket 2! in a position for withdrawing the molded articles following the cooling and contraction thereof.

The magnet comprises a permanently magnetized drum 22 journalled at one end of the bracket 2|, a non-magnetic drum 23 journalled at the center of the bracket in an elevated position and an endless non-magnetic belt 24- preferably of wire mesh material travelling over the drums. Transverse non-magnetic cleats 25 are suitably carried by the belt in spaced parallel relation to each other.

The drum 23 is provided with a pulley 26 at one end driven by a belt 21 from a motor 28 mounted at the other end of the bracket 2|.

The magnetized drum 22 rotates close to the surface of table II at a point remote from the feeding distributor l5 and the table is rotated at a speed whereby the nails or other articles 29 molded in the cavities l3 oi the table will be cooled before reaching the magnet and sumciently contracted to be extracted from the cavities as they pass under the magnet. The magnet is rotated in a direction as shown by the arrow in Figure 5 whereby the nails are .picked up and carried upwardly by the belt 24 and discharged into a suitable receptacle or chute (not shown) as they pass over drum 23. The cleats 25 prevent sliding of the nails downwardly on the inclined belt during travel thereof.

Having described the invention what is claimed as new is:

l. A nail making apparatus comprising a rotatable table having radially spaced apart mold cavities in the surface thereof, a heat reservoir containing molten metal disposed adjacent said table, a discharge spout extending from the reservoir and overlying said table, a radially extending: distributor supported in a stationary positionabove the table:- and unde'r the s'poiittb feed molten metal to the cavities, a magnetic drum rotatably mounted above the table to re move molded articles from the cavities, a nonmagnetic driving drum rotatablysiipportediaii jacent said magnetic drum and an endless non magnetic foraminous belt entrainedovi said drums to receive at its reach iitraihdover me i to" aiming molten-meta ;distcseq adiac ntsaid table, dischafge spout ektiendin'g from the ljif'sefvoii" overlying Said table; a radiany BX- tending distributor sup orted in a; stationary position. above the tabreami under the'spoiit' to feed molten metal to the cavities, a magnetic 4 drum rotatably mounted above the table to remove molded articles from the cavities, a nonmagnetic driving drum rotatably supported adjacent said magnetic drum and an endless nonmagnetic foraminous belt entrained over said drums to receive at its reach entrained over the magnetic drum the molded articles and convey them away from the drum, said cavities having vent openings in their lovver ends and a stationary scra er 'fi iied adjacent the underside of the t's'ilfil'e to remove excess metal brotriiding through the openings.

7 LOUIS LUKANCIC. REFERENCES CITED "ihi'ollowing references are of record in the fll' Of this filt ilti' UNITED STATES PATENTS 

